The term 'make wrinkly' can be solved by two crossword solutions: 'RUMPLE' (6 letters) and 'SHRIVEL' (7 letters). Both words refer to the process of making something wrinkled or crumpled. Rumpling is usually done by pressing or folding something, while shriveling is caused by drying out or losing moisture. Both terms are often used to describe the effects of aging on skin, as wrinkles and crinkles form over time.